JP2004000247A - Subsoiler implement - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To make a knife of a subsoiler implement hard to be adhered to soil, and to prevent the soil which is excavated and raised on the surface from interfering with the working. <P>SOLUTION: There are provided with a metallic bracket 23 set to the knife 21, and a friction reducing member 22 set to the knife by being set to the metallic bracket. An excavated curved surface 22Y of a curved surface toward the working progress direction is formed on the friction reducing member 22 as moving to a lower end of the knife, and the soil is excavated along the excavated curved surface 22Y, following the working progress of the knife stuck into the uncultivated soil. The friction reducing member 22 is exchangeably set to the metallic bracket 23. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a subsoiler working machine, and more particularly, to a subsoiler working machine that reduces work friction with soil, suppresses soil adhesion, and promotes discharge of excavated soil after forming a groove.
[0002]
[Prior art]
In the field, fallowing, treading of the tractor due to long-term use, formation of a board by the use of a rotary cultivator, natural hardening of the soil due to infiltration of rainwater have progressed, and not only the surface but also gradually hardened layers have grown downward. Tends to. Particularly in the pasture, the hard layer gradually grows due to stepping pressure by livestock such as cows, and the result is that the root of the grass is hindered. When the surface is hardened, cultivation of only the surface with a rotary cultivator creates an apparently soil-produced layer, but a plate is formed below this soil layer, and this plate has significant permeability. Poor (poor water permeability) and poor air permeability, so even a little rain will flood the surface of the field, causing runoff of the soil layer and crops failing to grow roots and sufficient growth Often, things can't be expected.
Therefore, using a subsoiler to crush the cultivated soil layer as well as the subsoil layer that exists underneath, making the cultivated soil layer water permeable, By supplying air, the soil is activated and the drainage and water permeability are improved.
[0003]
[Problems to be solved by the invention]
For the purpose of this work machine, the purpose is to crush the subsoil layer as deep as possible, but the load applied to the tractor is extremely large in the subsoil crushing work at a deep position, so that a tractor with a large horsepower The use of is forced. This subsoiler machine pulls a knife-like knife through the soil with a force higher than the resistance, so the resistance differs depending on the soil environment. There is no.
[0004]
Therefore, in order to reduce the load as much as possible, the shape of the knife has been improved, but depending on the soil, especially on volcanic ash soil, the soil adheres to the knife as if it were clay work, Further, there is a problem that this soil calls the soil, and the knife becomes like a bar of the soil, and only the resistance increases, making it impossible to continue the work.
In particular, this phenomenon is remarkable in a field in the Kanto loam area, and some measures have been demanded since the use of the subsoiler may not be possible.
[0005]
In addition, even if a subsoiler work machine can be used, the soil after being excavated and grooved by a chisel or knife is pushed up to the surface, and as the work progresses, the soil rises to the front side of the knife, which is In some cases, the water accumulated between the frame of the working machine and the surface of the field hindered the work.
[0006]
The present invention has been made in view of the above circumstances, and makes it difficult for soil to adhere to a knife of a subsoiler working machine, and furthermore, soil excavated and raised on the surface hinders work. The purpose is to avoid any problems.
[0007]
[Means for Solving the Problems]
A subsoiler working machine according to the present invention made to achieve the above-described object is a subsoiler working machine configured to attach a knife to a working machine frame and performing subsoil crushing work, and is attached to the knife. A metal bracket and a friction reducing member or a metal mold plate attached to the knife by being attached to the metal bracket, wherein the friction reducing member or the metal mold plate has a lower end portion of the knife. In the subsoiler working machine that excavates the soil along the excavation curved surface, the excavation curved surface of the curved surface facing the work traveling direction is formed as it goes, and with the progress of the operation of the knife inserted into the subsoil, the friction reducing member or A metal mold plate is replaceably attached to the metal bracket.
[0008]
According to the subsoiler working machine of the present invention, in the case of soil that easily adheres to the knife such as the Kanto loam layer, the friction reducing member can be used, and it is not necessary to consider the adhesion of the soil so much. By replacing the friction-reducing member with a metal mold plate and attaching it, it is possible to eliminate the adhesion of soil, or to achieve extremely low adhesion even if there is. Since the friction reducing member or the metal mold plate is attached to the front edge of the knife via the metal bracket, it is possible to remove the metal bracket from the knife and use the same as a conventional knife. it can.
In addition, even if the friction reducing member or the metal mold plate is worn, it can be replaced.
[0009]
Here, the friction reducing member or the metal mold plate has an excavation curved surface that is curved in the work traveling direction toward the lower end of the knife, and is formed in a lateral direction in the work traveling direction toward the upper end of the knife. The excavated surface is formed along the excavation curved surface with the progress of the operation of the knife inserted into the subsoil, and the excavated soil is moved with the progress of the operation. It is preferable to move the soil laterally along the discharge curved surface while pushing up.
By adopting such a configuration, the excavated soil, in other words, the soil after the grooving can be discharged to the side from the work progress direction, so that the work can be prevented from being hindered.
[0010]
Further, it is preferable that an inverted curved surface is formed at an upper end portion of the discharge curved surface of the friction reducing member or the metal mold plate.
In this manner, by forming the inverted curved surface at the upper end portion of the discharge curved surface of the metal mold plate, it is possible to increase the lateral reversal of the discharged soil.
[0011]
Further, it is preferable that the friction reducing member or the metal mold plate is attached to the metal bracket by bolts from the excavated curved surface and the discharge curved surface. Further, it is preferable that the friction reducing member is a resin molded product.
[0012]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to FIGS. First, in these attached drawings, reference numeral 10 indicates the entirety of a two-claw type subsoiler working machine (hereinafter referred to as a working machine), and this working machine 10 has a hollow frame 11 extending along the working width direction. A pair of flange plates 12 extending in the working direction, so-called front-rear direction, and sandwiching the frame 11 from above and below are arranged at both left and right end positions of the frame 11. The front end portion is fixed by four bolts 13 before and after the frame 11. The other end of each of the flange plates 12 extends rearward to form an extension 12A, and is sandwiched by the extensions 12A, 12A from above and below, and has a U-shaped cross section. Spacers 14 are formed, and the vertical plate portions of the spacers 14 are arranged so as to be perpendicular to the flange plate 12, and the two spacers 14 and 14 have their vertical plate portions facing each other, and And is fixed with an interval S corresponding to the thickness of the knife described below.
[0013]
A through hole 12B is formed in the flange plate 12 at a portion corresponding to the interval S between the spacers 14, 14, so that a knife described later can be inserted thereinto. And a knife insertion space for accommodating the upper end of the knife. The spacer 14 has a flange portion fixed to the extension 12A of the flange plate 12 with a bolt 14B. The spacers 14 are provided with a common window hole 14A so that a pin can be inserted to fix the knife with the pin 16.
[0014]
As shown in FIG. 3, the knife 20 has a width (length) along the working direction, and the width (length) in the left-right direction has a slightly thicker blade edge portion as compared with a conventional knife. A friction reducing member 22 is attached to a front edge 21 corresponding to the blade edge portion via a metal bracket 23, and is fixed at appropriate intervals by bolts 24. That is, as is apparent from FIGS. 3 and 4, the friction reducing member 22 is attached to the metal bracket 23 by a bolt 24 from an excavated curved surface 22Y and a discharge curved surface 22X described later.
[0015]
The metal bracket 23 is defined by the shape of the friction reducing member 22, and has a shape surrounding the back surface and the side surface of the friction reducing member 22, and the friction reducing member 22 wears and changes its shape. The edge portion is prevented from being unevenly worn as much as possible.
The friction reducing member 22 conforms to the shape of the knife 20 and is slightly curved from the upper end to the lower end. The lowermost portion of the knife 20, in other words, at the most distal position in the work traveling direction. A chisel 25 for crushing the subsoil is fixed, and a wing 26 for improving the crushing effect is connected to the rear thereof.
[0016]
In particular, the friction reducing member 22 and its bracket 23 are twisted near the upper end toward the side in the working direction, in other words, form a discharge curved surface 22X, which rises along the discharge curved surface 22X. As the soil is moved, the soil can escape to the side while moving out of the plane including the knife 20 and move. Along the discharge curved surface 22X, the bracket 23 also has a shape along the curved surface to accommodate the friction reducing member 22. The direction of discharging of the discharge curved surface 22X is symmetrical in the case of two claws, so that the discharged soil can be discharged to the outside of the working width.
Therefore, in the case of a single-claw type, it may be twisted to any side in the work progress direction, and may have any shape as long as it can prevent soil clogging.
[0017]
The digging curved surface 22Y is formed by drawing a gentle curved surface toward the work progress direction toward the lower end portion opposite to the upper end of the knife 20 to form the excavated curved surface 22Y. While excavating the soil along with, and pushing up the soil excavated with the work progress, it is possible to move the soil laterally along the discharge curved surface 22X as described above near the upper end portion as described above. Shape.
[0018]
Thereby, in the actual work, the soil at a deep position is excavated and pushed up to the surface of the field while being pushed up along the excavated curved surface 22Y along the friction reducing member 22 and then to the discharge curved surface 22X. Along the direction of the work progress. In addition, even when the soil rises due to excavation, the soil is moved to the side in the traveling direction, more specifically, to the outside of the working width by the guide of the discharge curved surface 22X formed on the friction reducing member 22, so that the lower surface of the frame is It is possible to prevent the soil from rising and clogging like a mountain in the space between the soil and the field, and to discharge the soil, which tends to rise, to the side in the traveling direction. Therefore, in the case of a single-claw type subsoiler working machine, since the waste may be discharged to either the left or right side, the twisting direction of the friction reducing member is freely left and right.
[0019]
This can be easily understood by comparing and explaining the conventional subsoiler working machine. If the discharge curved surface 22X is not formed in the friction reducing member 22, the soil excavated along the excavated curved surface 22Y is raised. However, since the soil rises in a plane including the knife 20, the work is performed. Hit the frame that constitutes the machine, accumulates in the space between the frame and the field, grows as a lump of soil, and with the progress of work, this enlarges and hinders the progress of work, but according to the present invention, Such inconvenience in operation can be solved.
[0020]
The friction-reducing member 22 has high abrasion resistance, and has no or no adhesion even in the case of soil that easily adheres to an iron knife such as a Kanto loam layer. Also, a resin molded product made of polyethylene or the like, which has an extremely small adhesiveness and excellent molding flexibility, is used, and a structure using bolts is adopted so that even if worn, it can be replaced.
[0021]
As is apparent from FIG. 3, the width (length) of the friction reducing member 22 in the left-right direction is larger than the width (length) of the knife 21 in the left-right direction (front edge). As a matter of course, a groove having a larger width can be formed as compared with the formation of the groove by only 21, the discharge of excavated soil can be promoted, the soil can be activated, and the drainage and water permeability can be further improved.
[0022]
In the above description, the knife 21 is attached to the friction reducing member 22 along the front surface in the work traveling direction. However, the friction reducing member 22 may be fixed to the left and right side surfaces of the knife 20. In this case, the side friction reducing member 22 is smaller than the width of the friction reducing member 22 in front of the knife 20.
Furthermore, although the description has been given of the case where the friction reducing member is attached via the bracket, it may not be necessary depending on the work target soil.
[0023]
Also, in the case of soil that does not easily adhere to the knife unlike the Kanto loam layer, the meaning of the friction reducing member 22 is thin, and in this case, a metal mold plate is used instead of the plastic one. The replacement of the excavated soil can be reliably performed. In this case, the shape is the same as that of the friction reducing member 22, and the excavation curved surface 22Y and the discharge curved surface 22X are formed. As shown in the phantom line in FIG. 4, an inverted curved surface is formed at the upper end of the discharge curved surface 22X. By forming 22Z, the reversal of the soil discharged by the torsional portion of the reversing curved surface to the side is increased, and an effective function as a mold plate can be expected.
[0024]
As is apparent from the above description, according to this subsoiler working machine, the soil excavated during the work can be minimized from adhering to the knife, and the friction with the soil can be minimized. The tractor can have a margin, and in particular, the friction reducing member allows the discharged direction of the excavated soil to escape from the plane including the knife to the side, so that the discharged soil does not hinder the work progress, Work can be done efficiently. In addition, when it is not necessary to consider the adhesion of soil in the field, the friction reducing member may be replaced with a metal mold plate and attached to reduce the discharge of excavated soil, in other words, soil after grooving. The operation can be performed by deviating to the side from the operation progress direction, and the interruption of the operation can be prevented.
[0025]
【The invention's effect】
As is clear from the above description, according to the subsoiler working machine of the present invention, in the case of soil that easily adheres to the knife, such as the Kanto loam layer, this friction reducing member can be used, and the soil adhesion can be reduced. In the case where it is not necessary to consider it as much, by replacing the friction reducing member with a metal mold plate and attaching it, there is no soil adhesion, or it is possible to make the adhesion very small even if there is adhesion. it can. Since the friction reducing member or the metal mold plate is attached to the knife via the metal bracket, the metal bracket can be removed from the knife to be used in the same manner as a conventional knife.
Further, even when the friction reducing member or the metal mold plate is worn, it can be replaced.
[Brief description of the drawings]
FIG. 1 is a side view of a subsoiler working machine according to the present invention.
FIG. 2 is a plan view of the subsoiler working machine of the present invention.
FIG. 3 is a perspective view of a knife portion of the subsoiler working machine of the present invention.
FIG. 4 is a detailed perspective view of a friction reducing member of the subsoiler working machine of the present invention.
FIG. 5 is a partially enlarged perspective view of a portion denoted by reference numeral 5 in FIG.
FIG. 6 is a partially enlarged perspective view of a portion denoted by reference numeral 6 in FIG.
[Explanation of symbols]
Reference Signs List 10 Subsoiler working machine 11 Frame 12 Flange plate 13 Bolt 14 Spacer 20 Knife 21 Front edge 22 Friction reducing member 22X Discharge curved surface 22Y Excavated curved surface 22Z Inverted curved surface 23 Bracket 24 Bolt 25 Chisel

Claims (5)

A subsoiler working machine configured to attach a knife to the working machine frame and performing subsoil crushing work,
A metal bracket attached to the knife, and a friction reducing member or metal mold plate attached to the knife by being attached to the metal bracket;
The friction reducing member or the metal mold plate is formed with an excavation curved surface having a curved surface facing the work progress direction toward the lower end portion of the knife. In a subsoiler working machine that excavates soil along
A sub-soiler working machine, wherein the friction reducing member or the metal mold plate is replaceably attached to the metal bracket. The friction-reducing member or the metal mold plate has an excavation curved surface that is curved in the work traveling direction toward the lower end of the knife, and is directed laterally in the work traveling direction toward the upper end of the knife. A twisted discharge curved surface is formed and, along with the work of the knife pierced into the subsoil, excavates soil along the excavated curved surface, and pushes the excavated soil to the surface of the field as the work progresses. The subsoiler working machine according to claim 1, wherein the soil is moved laterally along the discharge curved surface. The sub-soiler working machine according to claim 1 or 2, wherein an inverted curved surface is formed at an upper end portion of the discharge curved surface of the friction reducing member or the metal mold plate. The sub-soiler working machine according to any one of claims 1 to 3, wherein the friction reducing member or the metal mold plate is attached to the metal bracket by bolts from the excavation curved surface and the discharge curved surface. . The sub-soiler working machine according to claim 1, wherein the friction reducing member is a resin molded product.

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